Systemic drug-related intertriginous and flexural exanthema induced by the Pfizer-BioNTech COVID-19 vaccine: A report of 2 cases - Josephine Hai, BS; Harrison Shawa, BS; Penelope Kim-Lim, BS; Jenny Z. Wang, MD; Michelle Vy, MD; Maxwell A. Fung, MD; Apra Sood, MD; Danielle M. Tartar, MD, PhD (Elsevier, 2021)